Double well slow cooker



FIG. 1 is a front elevation view of a double well slow cooker showing my new design;

FIG. 2 is a rear elevational view;

FIG. 3 is a top plan view;

FIG. 4 is a bottom plan view;

FIG. 5 is a right side elevational view which is indentical to the left side;

FIG. 6 is a top, front perspective view thereof. 

The ornamental design for a double well slow cooker, as shown and described. 